If you need to convert watts (W) to kilojoules per hour (kJ/h), this guide will help you understand the conversion formula, provide a reference table, and offer practical examples for easy conversions.

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Conversion Formula

To convert watts (W) to kilojoules per hour (kJ/h), use the following formula:

Kilojoules per Hour (kJ/h) = Watts (W) × 3.6

Explanation:

• 1 watt (W) = 3.6 kilojoules per hour (kJ/h)

This is because 1 watt represents 1 joule per second, and there are 3,600 seconds in an hour, so the conversion factor becomes 3.6.

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Conversion Table: Watts to Kilojoules per Hour

Here’s a quick reference table for converting watts (W) to kilojoules per hour (kJ/h):

Watts (W)	Kilojoules per Hour (kJ/h)
1	3.6
5	18
10	36
50	180
100	360
500	1,800
1,000	3,600
2,000	7,200
5,000	18,000
10,000	36,000

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Quick Conversion Example

Let’s say you have 150 watts (W) and want to convert it to kilojoules per hour (kJ/h).

Kilojoules per Hour (kJ/h) = 150 × 3.6 = 540 kJ/h

So, 150 watts is equal to 540 kilojoules per hour.

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Frequently Asked Questions (FAQs)

1. How do I convert kilojoules per hour to watts?

To convert kilojoules per hour (kJ/h) to watts (W), use the inverse formula:

Watts (W) = Kilojoules per Hour (kJ/h) ÷ 3.6

For example, to convert 720 kilojoules per hour to watts:

Watts (W) = 720 ÷ 3.6 = 200 W

2. Why do we multiply by 3.6 in this conversion?

We multiply by 3.6 because 1 watt (W) is equal to 1 joule per second (J/s), and there are 3,600 seconds in an hour. Therefore, the total energy delivered in an hour is 3.6 kilojoules (kJ).

3. Can I use an online converter for this?

Yes! Online converters are quick and convenient for converting watts to kilojoules per hour. Simply input the value in watts, and the result will be displayed in kilojoules per hour.

4. Where is this conversion used?

This conversion is commonly used in energy calculations, electrical power consumption, and heating or cooling applications where energy is measured in watts, and energy usage or output is expressed in kilojoules per hour.

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Conclusion

Now that you have the formula, conversion table, and example, converting watts (W) to kilojoules per hour (kJ/h) is straightforward. Whether you’re calculating power usage, heating, or energy consumption, this conversion will help you work between these energy-related units. You can also use online tools for quicker conversions, but knowing the formula ensures accuracy in manual calculations.